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Green 240-pin DDR2 DIMM with black chips, no heat spreader

Computer Memory Solutions

Computer Memory Solutions 1GB DDR2 667 PC2-5300 DIMM for Dell OptiPlex GX620

SKU CH-M581-7J7KP

A 1GB DDR2 667 DIMM built for Dell OptiPlex GX620 desktops with 240-pin CL5 timing and 1.8V operation

  • Total capacity1 GB
  • Rated speedDDR2 667 (PC2 5300)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL5
  • Memory timings5-5-5
  • Rated voltage1.8 V
  • Guaranteed compatibility with Dell OptiPlex GX620 systems
  • 1 GB capacity adds responsive multitasking headroom
  • DDR2 667 speed matches original platform specification
  • Non-ECC unbuffered DIMM installs without configuration
  • 240-pin form factor fits the four available slots

Dell OptiPlex GX620 compatible DDR2 module

This 1GB DDR2 667 (PC2-5300) DIMM is built specifically for Dell OptiPlex GX620 DT, MT and SFF desktops. It uses a 240-pin unbuffered non-ECC design with CL5 5-5-5 timing at 1.8V. The module carries a major brand chipset and is sold as a single stick for straightforward upgrades.

Capacity and headroom for legacy systems

The stick adds 1GB of DDR2 memory to systems that support up to 8GB across four sockets. It handles everyday office applications and older operating systems comfortably. Headroom disappears with modern multitasking or memory-intensive workloads that exceed the platform's maximum addressable space.

Thermals noise and power draw

Operating at the standard 1.8V DDR2 voltage, the module runs without a heat spreader and draws minimal power. Passive cooling from normal case airflow is sufficient. The component adds no audible noise and places negligible additional load on the system's power supply.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $5.99
Cheaper than about 99% of the 21,161 comparable items (median $397.99).
Total capacity 1 GB
Lower than about 98% of the 20,941 comparable items (median 32 GB).
Price per GB $5.99 per GB
Cheaper than about 65% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM128645300DIMMDR
Total capacity1 GB
Product type240-Pin DDR2 SDRAM
Performance
Rated speedDDR2 667 (PC2 5300)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL5
Memory timings5-5-5
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.8 V
Compatibility
Compatible systemsDell Optiplex Gx620 Dt / Mt / Sff
In the box
Included items1 Memory RAM Stick

Questions about this item

Will this 1 GB DDR2-667 DIMM work alongside the original memory already installed in my OptiPlex GX620?

This module is specified as compatible with the Dell OptiPlex GX620 DT, MT and SFF systems, which use DDR2-667 unbuffered non-ECC DIMMs.

How can I confirm the new stick is running at the correct 667 MHz speed and CL5 timing after installation?

Enter the system BIOS or use a tool such as CPU-Z; the memory tab should show DDR2-667 (PC2-5300) with 5-5-5 timings at 1.8 V.

Does the package include only the memory stick or are extra items such as a heat spreader or installation tool supplied?

The box contains one 240-pin DDR2 SDRAM DIMM; no heat spreader, tools or additional accessories are included.

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